<!DOCTYPE HTML>
<html>

<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>获得星期</title>
  <script type="text/javascript">
    var mydate = new Date();
    var week = mydate.getDay();
    var weekday = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
    document.write("今天是：" + weekday[week]);
  </script>
</head>

<body>
</body>

</html>